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Importing an Intergraph PDS Neutral File,
Editing the Resulting Data and Processing an Analysis Using TRIFLEX

 

1.      Start up TRIFLEX Windows

2.      Click on UTILITIES

3.      Click on IMPORT FILES

4.      Click on PDS IMPORT SETTINGS

a)      Enter the Starting Node Number

b)      Enter the Node Increment

c)      Select the X-Axis Orientation from the pull down menu provided in this field

d)      Click on the OK button

5.      Click on UTILITIES

6.      Click on IMPORT FILES

7.      Click on PDS FILES

8.      Locate the path where PDS Neutral files ( *.NEU) reside.  In the standard TRIFLEX Windows, PDS Neutral files reside under the following path:

                 c:\Program Files\PipingSolutions\TRIFLEXWindows\Samples

            Select the (*. NEU) file which should be viewed.

9.      The piping model will be displayed on the screen.  In many piping models imported from PDS, the coordinates of the piping system will cause the piping model to appear very distant.  Often it will only be represented on the screen with a spec that is barely visible.  To identify the location of the piping model , do the following:

a)      Click on the NODE LABELS button (9th button down) on the Graphics Toolbar.  The spec should then be visible with a group of tightly displayed node numbers.

b)      Click on the ZOOM button (11th button down) on the Graphics Toolbar.  Then place the cursor near the tightly displayed node numbers, press the left mouse button and drag the cursor to make a box around the tightly displayed node numbers.  When the mouse left button is released, TRIFLEX will re-display the piping model in the window in a larger size.  Perform this operation several times until the piping system is the desired size.

10.  In Graphic Mode (a hand will show for the cursor), click on the ZOOM POINT button (6th button down) on the Graphics Toolbar.  Then place the target on the piping model at the point on the model to be the center point for rotation of the piping system on the screen and then click the left mouse button.  TRIFLEX will bring the selected point in the piping system into the center of the screen and will zoom in on it.

11.  When the desired view of the piping system is achieved, click on the SET HOME button (3rd button down) on the Graphics Toolbar.  This will set this new view of the piping model as the New Home Position for the piping model.

12.  At this point, the User needs to review the data and add data as found to be necessary.

a)      Click on SETUP, then on PROJECT and enter the desired data.

b)      Click on SETUP, then on OUTPUT UNITS and select the desired System of Units.

c)      Click on SETUP, then on MODELING DEFAULTS and enter the desired data. 

d)      Click on SETUP, then on CASE DEFINITION and select the desired analysis conditions.

e)      Click on WORKSHEET  button on the Main Menu bar.  The work sheet will then be displayed for the User to review the data.

f)        Scroll to the top of the spreadsheet and double click on the word ANCHOR on the first line.  The Anchor dialog will then be displayed.  Notice that the Anchor flexibility is defined as totally free.  Click on the Totally Rigid radio button.

g)      Click on the INITIAL MVMTS/ROTS tab.  Enter any desired anchor movements and rotations.

h)      Click on the PIPE PROPERTIES tab.  Check the data.  Enter contents properties and or pipe insulation,(if none came over in the data from PDS).  Be sure to press RIPPLE so that the entered data will be propagated through the piping model.  If the contents or the pipe insulation varies throughout the piping system, then you must go to each pipe segment where the changes occur and enter/ripple the proper values.

i)        Click on the PROCESS tab.  Check the data.  Enter the pressure and temperature values, if the displayed values are not the desired values.  If a code compliance analysis is to be processed, then the USE INSTALLED MODULUS radio button is to be selected (default).  If the User expects to process a rotating equipment analysis or simply wishes to see the true movements at operating conditions, then the USE OPERATING MODULUS radio button should be selected.  If the pressure and/or temperature varies throughout the piping system, then the User must go to each pipe segment where the changes occur and enter/ripple the proper values.

j)        Click on the WIND LOADS tab.  No wind load data will be brought over from PDS in the data conversion.  The User may enter the desired data.  Once the data is entered, press RIPPLE so that the entered data will be propagated through the piping model.

k)      Click on the SOIL LOADS tab.  No soil load data will be brought over from PDS in the data conversion.  The User may enter the desired data.  Once the data is entered, press RIPPLE so that the entered data will be propagated through the piping model.

l)        Click on the CODE COMPLIANCE tab.  No code compliance data will be brought over from PDS in the data conversion.  The User may enter the desired data.  Once the data is entered, press RIPPLE so that the entered data will be propagated through the piping model.

m)    Looking at the graphics model of the piping system, there will likely be some flanges that are facing forward when they should be facing backward.  Double click on each flange and place a check mark in the check box in the field labeled “FLANGE IS FACING BACKWARD” which can be found in the middle of the Flange dialog.

n)      Scan the balance of the data to insure that it is correct.  Make any of the desired changes and process the analysis.

13)     Execute the analysis by either of the following methods:

a)      On the Main Menu, select Calculate and then from the pull down Menu, select Basic Calculation, or

b)      Click on the Green Calculate Arrow icon located just below the Help item on the Main Menu.

 

Do you have any questions? Ask us.
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